一种改进的MIMO检测算法  

An Improving Algorithm for MIMO Detection

作　　者：肖莉 胡艳军[1] 葛晓光 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,合肥 [2]上海无线通信研究中心,上海 [3]中国科学院无线传感网与通信重点实验室,上海

出　　处：《无线通信》2011年第2期34-38,共5页Hans Journal of Wireless Communications

基　　金：国家重大专项(2009ZX03003-009);国家自然科学基金目(601071168);安徽大学“211工程”学术创新团队基金资助。

摘　　要：本文针对现有的ML(Maximum Likelihood)检测算法复杂度高,而传统检测算法性能不是很优的问题,提出了一种新的检测算法。新的检测算法结合ZF-OSIC和ML检测算法,根据ZF-OSIC(Force Zero- Ordered Successive Interference Cancellation)把发射信号的可能值限制在一定的范围内进行搜索,而不是对所有可能值的遍历。仿真结果表明,选择合适的搜索范围可以使BER性能在最接近ML性能的同时复杂度也得到了降低。The existing ML (Maximum Likelihood) detection algorithm is of high complexity, and the tradi-tional detection algorithm doesn’t have very excellent performance. According to this problem, we propose a new detection algorithm in this paper. The new detection algorithm combined with ZF-OSIC and ML detec-tion algorithms, and to search by limiting the possible values for the transmitted signal within a certain range with ZF-OSIC (Force Zero-Ordered Successive Interference Cancellation), rather than traverse all possible values. The simulation results show that selecting the appropriate search range can make BER performance be most close to the ML performance while its complexity being reduced.

关 键 词：迫零检测 最小均方误差检测 排序的迫零检测算法 最大似然检测算法 

分 类 号：TN91[电子电信—通信与信息系统]